Decision Workspace
linalloc vs fastarena vs safe-bump
Side-by-side comparison of Rust crates
48
linalloc
experimentalv2.0.0
Small, fixed-capacity arena allocators for single-threaded Rust programs.
55
fastarena
experimentalv0.2.0
A zero-dependency, bump-pointer arena allocator with RAII transactions, nested savepoints, optional LIFO destructor tracking, and ArenaVec — built for compilers, storage engines, and high-throughput request-scoped workloads.
52
safe-bump
experimentalv0.2.1
Safe typed arena — zero unsafe, auto Drop, checkpoint/rollback, single-thread Arena + concurrent SharedArena
Core Metrics
| linalloc | fastarena | safe-bump | |
|---|---|---|---|
| Health Score | 48 | 55 | 52 |
| Total Downloads | 62 | 228 | 3.9K |
| 30d Downloads | 0 | 0 | 771 |
| Dependents | 0 | 2 | 2 |
| Releases | 4 | 5 | 3 |
| Last Updated | 6d ago | 48d ago | 140d ago |
| Age | 1m | 3m | 4m |
Health Breakdown
linalloc
Maintenance
16
Quality
13
Community
5
Popularity
2
Documentation
12
fastarena
Maintenance
15
Quality
15
Community
7
Popularity
3
Documentation
15
safe-bump
Maintenance
12
Quality
14
Community
7
Popularity
4
Documentation
15
Technical Details
| linalloc | fastarena | safe-bump | |
|---|---|---|---|
| Version | 2.0.0 | 0.2.0 | 0.2.1 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT | MIT | Apache-2.0 |
| Dependencies | 0 | 3 | 1 |
| Crate Size | 16KB | 59KB | 27KB |
| Features | 1 | 1 | 0 |
| Yanked % | 75.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | 1.95 | 1.66 | 1.93 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •fastarena leads with a health score of 55/100, but none of the options score above 80.
- •safe-bump has the most downloads (3.9K), suggesting wider adoption.
- •fastarena, safe-bump are pre-1.0 — API may change.